Pill Identification by Imprints: M C3 Home Pill Identification by Imprints: M C3 2 results CAPTOPRIL 50 MG TABLET Side 1: M C3 Color: White Side 2: Shape: Round CAPTOPRIL 50 MG TABLET Side 1: M C3 Color: White Side 2: Shape: Round Other Popular Drug Imprint 629 1 2 2773 50 BL 05 Nitroglycerin 0.1 mg/hr AZ221 E 17 4893 M A7 FLINT b 775 M L23 M PD6 C4 or C2 F1 BTG EPITOL M53 TL050 052 L521 ELP 10 AZ 011 M 1745 93 7438 J94 RE 54 341 DONNATAL 1/4 DANTRIUM 100mg DS or DP U47 logo and 121 SG 321 LU LU 637 5 XL E612 5